#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
int main()
{
	printf("please tell me how much it is\n");
	int c = 0;
	scanf("%d", &c);
	printf("it is %d", c);
	int a = c;
	int b = 3;
	int i = a + b;
	printf("please pay me %2d yuan\n ",i);
	printf("%s", "lili");
	printf("%9.2f", 123.454);
	return 0;
}